Lightweight Engineering. Exotic Sound. 

The Porsche 992 GT3 RS is one of the most focused naturally aspirated track cars ever built, and its exhaust system should match that level of precision. This lightweight performance exhaust package is engineered to unlock a sharper, more exotic sound profile from the 4.0L flat-six while reducing weight, improving flow, and maintaining full valve-control flexibility. Available in both AISI 304 stainless steel and Ti-6Al-4V titanium, this system is built for owners who want a more emotional, high-frequency sound without compromising fitment, craftsmanship, or usability.

X-Pipe Catback | Dual Muffler Valved Design | MaxFlow Header Package

The Yonristic Performance Exhaust System for the Porsche 992 GT3 RS is designed as a premium lightweight exhaust solution focused on sound quality, weight reduction, and thermal control. The factory GT3 RS already delivers an incredible driving experience, but the OEM exhaust system still limits the full acoustic potential of the naturally aspirated flat-six. This system is engineered to open the car up with a cleaner, sharper, and more exotic tone while preserving the refined motorsport character that defines the GT3 RS platform.

At the center of the catback system is a precision X-pipe architecture, designed to balance exhaust pulses and create a smoother, higher-frequency sound profile as RPM increases. Instead of producing a rough or uncontrolled tone, the X-pipe helps the exhaust note build progressively, giving the car a sharper and more exotic character at high RPM while maintaining a clean sound through the mid-range.

The rear section uses a dual muffler valved design, giving the system both sound control and performance flow. With the valves closed, the system keeps the exhaust tone more controlled for lower-speed driving, neighborhood use, and daily drivability. With the valves open, the exhaust path becomes significantly more direct, releasing a louder, sharper, and more motorsport-inspired tone that fully matches the personality of the GT3 RS.

The system is compatible with both factory valve control and Yonristic remote valve control. Owners can choose to retain OEM valve behavior through the factory system, or use the remote valve setup for full manual control. For customers choosing remote valve control, the package also includes a valve simulator / valve eliminator, designed to help prevent valve-related warning lights or limp mode when the factory valve actuators are not being used.

For customers looking to complete the full performance package, this exhaust can be paired with our MaxFlow headers, available in both free-flow and 200-cell configurations. The headers feature a premium gold ceramic thermal coating, using the same ceramic technology applied to our VANTA GOLD projects. This coating helps reduce radiant heat, improve thermal stability, and protect surrounding components while keeping the header package significantly lighter and cleaner than traditional heavy heat shielding. The result is a high-performance header setup that improves flow, manages heat, and adds a premium motorsport-grade finish.

Material choice plays a major role in the character of this system. The AISI 304 stainless steel version delivers excellent durability, corrosion resistance, and a strong refined tone. The Ti-6Al-4V titanium version is the ultimate lightweight option, offering dramatic weight savings and a sharper, more resonant exotic sound. For customers who want the most responsive and emotional version of this system, titanium is the ideal choice.

The exhaust tips are available in black, silver, and gold finishes, each treated with ceramic coating rather than standard surface coloring. This ceramic treatment is designed to resist discoloration and fading under heat, helping the tips maintain their appearance over time. It also adds an additional layer of heat protection, reducing surface heat exposure compared to untreated metal finishes while giving the rear end a more premium and finished appearance.

Every component is built with precision fitment in mind. The system is hand TIG-welded, designed for factory mounting points, and built to install cleanly without cutting or welding. The result is a complete GT3 RS exhaust package that combines exotic sound, lightweight construction, thermal management, and premium presentation in one system.

Lightweight Exotic Sound Architecture

This system is designed to deliver the most exotic sound possible while keeping weight as low as possible. The X-pipe layout refines exhaust pulse interaction, while the dual muffler valved design gives the car a cleaner, sharper, and more high-frequency tone under load. Choosing the titanium version further enhances the sound character, giving the GT3 RS a more responsive, metallic, and motorsport-inspired exhaust note.

Gold Ceramic-Coated MaxFlow Headers

The optional MaxFlow headers are treated with our premium gold ceramic coating, the same thermal-management technology used on VANTA GOLD projects. This coating helps control radiant heat, protects nearby components, and reduces the need for heavier traditional shielding. Available in free-flow and 200-cell versions, the headers are designed to unlock stronger flow, sharper response, and a more intense high-RPM sound.

Dual Valve Control with Included Valve Simulator

The exhaust supports both factory valve control and Yonristic remote valve control, allowing owners to choose the setup that best fits their driving style. Remote valve control gives full manual sound command, while factory valve control retains OEM-style behavior. For remote valve setups, the included valve simulator / eliminator helps prevent valve-related warning lights or limp mode when properly installed.

Performance Gains

Catback Only
+12 – 18 HP
+10 – 15 lb-ft Torque

Catback + MaxFlow Headers
+25 – 40 HP
+20 – 30 lb-ft Torque

Performance gains may vary depending on material choice, header configuration, tuning, fuel quality, and supporting modifications.

Key Specifications

Configuration
Lightweight valved performance exhaust system
X-pipe catback design
Dual muffler valved rear section
Optional MaxFlow headers

Header Options
Free-flow MaxFlow headers
200-cell high-flow MaxFlow headers
Gold ceramic thermal coating

Materials
AISI 304 stainless steel
Ti-6Al-4V titanium

Valve Control
Factory valve control compatible
Remote valve control compatible
Valve simulator / valve eliminator included for remote valve setup

Tips
Black ceramic-coated tips
Silver ceramic-coated tips
Gold ceramic-coated tips
Designed to resist fading and discoloration under heat

Construction
Hand TIG-welded assembly
Precision-engineered fitment
Lightweight performance design

Installation
Direct bolt-on installation
No cutting or welding required
Uses factory mounting points

Vehicle Fitment

Porsche 992 GT3 RS — 2023+

Engine: 4.0L Naturally Aspirated Flat-Six